January 24 » During the Seven Years' War the leading burghers of Königsberg submit to Elizabeth of Russia, thus forming Russian Prussia (until 1763).
June 12 » French and Indian War: Siege of Louisbourg: James Wolfe's attack at Louisbourg, Nova Scotia, commences.
June 23 » Seven Years' War: Battle of Krefeld: British, Hanoverian, and Prussian forces defeat French troops at Krefeld in Germany.
July 8 » French forces hold Fort Carillon against the British at Ticonderoga, New York.
September 11 » Battle of Saint Cast: France repels British invasion during the Seven Years' War.
December 25 » Halley's Comet is sighted by Johann Georg Palitzsch, confirming Edmund Halley's prediction of its passage. This was the first passage of a comet predicted ahead of time.
When copying data from this family tree, please include a reference to the origin: Nathalie Persoon, "Family tree Persoon", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-persoon/I1034.php : accessed January 7, 2026), "Isaac van der Maas".
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